Oh my god, this is wonderful! The sex/gender bit is just BAM straight-up LGBTQIA-friendly progressive. It's possibly the most directly progressive message in this department I've ever seen in a mainstream fantasy RPG (granted, some may have escaped my attention), and it's awesome. The example of a character who would be called trans as LITERALLY made in the image of (a) god is just beautiful.
That is definitely what I call a good start to this chapter, and indeed puts me in a good place regarding 5E (as someone with gay and trans friends and players, particularly so).